Table 1 Roughness of each ceramic in its as-glazed, ground and polished state

From: Surface roughness of zirconia for full-contour crowns after clinically simulated grinding and polishing

 

Ground

Polished

Group

Ceramic

Glazed

Coarse

Medium

Fine

Coarse

Medium

Fine

1

Y-TZP only glazed

4.31±1.93

12.57±4.40

5.53±2.06

3.76±1.02

3.35±0.82

2.96±0.59

2.41±0.51

2

Y-TZP/veneered with VM9

7.23±2.71

24.13±4.53

15.03±2.38

13.51±2.55

12.17±2.50

10.24±2.02

8.10±1.99

  1. Y-TZP, yttria-stabilized tetragonal zirconia polycrystal. Rmax in µm.